Annual report [Section 13 and 15(d), not S-K Item 405]

Derivative Instruments and Hedging Activities - Derivative Instruments, Gain (Loss) in Statement of Financial Performance (Details)

v3.25.4
Derivative Instruments and Hedging Activities - Derivative Instruments, Gain (Loss) in Statement of Financial Performance (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income $ (91,425) $ 107,151 $ (219,156)
TBAs | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income 118,447 (144,416) (155,942)
Futures, net | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income (58,478) 105,216 (8,973)
Options on futures | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income (285) (127) (779)
Interest rate swap agreements | Payers | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income (275,882) 301,781 (53,263)
Interest rate swap agreements | Receivers | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income 121,527 (153,941) 526
Swaptions, net | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income 0 31 (209)
TBAs (pipeline) | Gain on mortgage loans held-for-sale      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income (541) 0 0
Interest rate lock commitments | Gain on mortgage loans held-for-sale      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income 743 137 0
Forward mortgage loan sale commitments | Gain on mortgage loans held-for-sale      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income (143) 160 0
Inverse interest-only securities | (Loss) gain on derivative instruments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Income $ 3,187 $ (1,690) $ (516)